Steam and water governor for boilers



Mu ch 30 W. C. BLUNDELL STEAM AND WATER GOVERNOR FOR BOILERS F" eq Ju y19 1924 3 Sheets-Sheet l March 30 1926.

W. C. BLUNDELL STEAM AND WATER GOVERNOR FOR BOILERS 3 Sheets-Sheet 2Filed July W. C. BLUNDELL.

STEAM AND WATER GOVERNOR FOR BOILERS March 30 1926. 1,579,066

Filed July 19, 2 s Sheets-Sheets steam and water Patented Mar. 30, 1926.1

v v 1.51m UNITED STATES TEN WILLIAM G. BLUNDELL, or Los ANGELES,CALIFORNIA; Assrenonj or ONE-HALF T0 EUGENE w. BLUNDELL, or LOS ANGELES,GALIFORNIA. I

STEAM AND WATER GOVERNOR BOILERS.

Application filed July 19, 1924. Serial No. 726999. 1

To all whom it may concern:

Be it'known that I, WILLIAM C. BLUN- DELL, a citizen of the UnitedStates, residing at Los Angeles, in the county of Los Angeles and Stateof California, have invented new and useful Improvements in Steam andWater Governors for Boilers, of which the following is aspeoification.

This invention is a steam and water governor for boilers, and consistsof the novel features herein shown, described and claimed. .An object'isto make a device to be used in combination with a boiler and steam pumpfor feeding the boiler and serving to turn on-the steam to operatethe'pump to feed the boiler when thewater level in the boiler goes belowa pre-determined point.

Another object is to provide an automatic safety device for blowing awhistle when the steam andwater governor fails to work.

: Another object is to provide a plurality of boilers with. a steam andwater governor for each boiler andconnect all the governors to a singlefeed water pumping system.

" Other objects and advantages will appear from the drawings andspecification.

The drawings illustrate: the construction and use of a steam and watergovernor for boilers embodying the principles of my invention. v Figure1 is a side elevationof aboiler provided with a feed water fpump and mygovernor or controlling the pump; k

Fi n- 2 is a detail end elevation looking in thedirection indicated bythe arrows 2' in Figs. 1and6. Fig. 3 is a cross sectional detail on thelines 33 of Figs. 1 and 5 and looking in the'direction indicated by thearrows.

Fig. 4'is a cross sectional detail on the line 4-'-4 of Figs. 1 and 5.

indicated by the arrows. I

v by the arrow 7 in Fig. 5', parts being broken 7 end of thelug andextends downwardly Fig.5isan enlarged side elevation'o'f steam and watergovernor-shown-in Fig. 1

and as seen looking in thedirection indicated by thearrow 5-ingFig.t 3.I Fig. 6 is a horizontal section on the line 6+6 of Fig. 5 andlookingdownwardly as Fig. 7 is a bottom plan view as indicated away and shownin section. L r

I Fig, 8 is a diagrammatictopplan view of a plurality of bollers, eachboiler being'provided with 'a governor and all'theggovernors connectedto a tem., The details of construction and operation single feed waterpump Sys- 2' shown in the drawings are as follows: :1

The steamboiler 1 has asteam dome-23nd a steam water pump'3.' It is:desi'redto' maintain the level in the steam' boiler *llat the line 4.The steam supply pipe 5 leads from the top of the dome 2 through a1 -6and valve 7. A branch Lpipe 8-leads downwardly from the T 6 to. thewater'co1 m 9 and gauge 10.. A i 1 leads down;

wardly from the'water column 9 to a valve 12 and is connectedintotheboiler at 13 so that the water level in the boiler 1 will showon'the'g'auge 10. f v p A pipe 14 leads from'the top of the steam dome 2through a T 14 and through a valve 15 and T 16' to the steam chamber ofthe water pump 3. When the governor isworking the valve 15 is closed;The pipe 17, leads fromthe water pump-3 through a-T 18 and.

valve 19 and is connected into the boiler "1- at 20. "Whenthe governoris'wo-rking the valve 19'is closed.-- 1 5 2 The steam and water governor21 is connected to the pipes 8, 11, 14 and 17 and to the T16, and thedetails are as follows: i

The spacing spider 22 .has arms 23, 24, 25 and 26 extending fromacentral hub27', and

the spacing .rodsleeves 28, '29, 30 and 31 ex v I tend through the outerends of thearms and the expansion tube 32 extends freely through thehub'27'. A second spider 33 hasarms'34, 35, 36 and 37 against which theends of the sleeves 28, 29, 30 and 31 fit andthe connecting rods 38, 39,T40 and 41are-inserted I 1 through the outerends'o'f'the arms 34, 35,

36 and 37' and through. the sleeves 28, 29, 30 and 31. A head 42 fitsagainst the opposite ends of-the sleeves 28, 29, 30 and 31 from thespider 33 and therods .38, 39, '40 and 41' are tapped-into the head 42andscrewed tight to hold the parts rigidly together. A lug 43 is formedintegral with the'zspider 33 to occupy a vertical ositionv-a'nd the lugis cored to form a charm er'44; Theexpam sion tube 32 is tapped. intothe uppen-part of the lug 43 to communicate with the chamber 44 anda'pipe 45is tapped into the lower through a cut as valve 46-andlaterally to a T 47 incorporated intothe pipe 11 above the valve 12-,the parts being adjusted so that the water level line 4 will be withinthe cross sectional area of the expansion tube 32,

or so that when the water level is higl'l the expansion tube 32 will befull: or nearly full of water, and so that when the water level is lowthe expansion. tube '32 will be nearly or quite empty of water. The expansion tube 32 extends freely through the V I head 42.

cross head The'head 42"is a part of a casting cored to form aninlet-steamch-amber 48, an outlet steam chamber 49, an inlet waterchamber 50,-and an: outlet water chamber 51; A pipe 52 connects the pipe14 through the T 14 and a valve 53--to the inlet steam: chamber '48. Apipe 54 connects the outlet steam chamber 49 through a valve 55 tothe T16. A pipe- 56 connects the inlet water chamber 50 through a valve 57 tothe T 18 and pipe 17. A pipe 58 connects-"the outlet water cl1a1nber'51through a valve 59 to'the boiler 1 as indicated at 60. A valve seat andsupport 61 separates the inlet steam chamber 48 from the outlet steamchamber 49. A valve 62 fits the valve seat 61 and the valve stem 63extends out of the chamber 48 through a stuliing box 64 and has a screwthreaded outer end 65 extending through a cross head arm 66 with a nut67 upon the outer end 65 to adjust the parts.

A valve seat 68 and support separates the water inlet chamber 50 fromthe water inlet chamber 51. A valve 69 fitsthe valve seat,

fittin 75 to communicate withthe chamber 76. pipe 77 leads from aT 78 inthe pipe 8 through a'valve 79 and is tapped into the fitting: 75 tocommunicate with the. chamber 76 so that when the boiler is operatingsteam will. pass through. the pipe 8, the T 78-, the pipe 77 and thevalvev7 9 to the chamber 76 and meet the: water in the: expansiontube32',

so that as the water goes up in the boiler the expansion tube 32: mayfill with'wraterand as the water goes. down the expansion tube may fill:with steam, and so that when the expansion tube 32 fills. with steammore or less the tube will expand and move the fitting 75 and crossheadarms 66 and. 73 to unseat the valves 62' and 69', thereby turning steaminto the steam chambers of the pump 3. to: operate the pump, and so thatwhen the'pump operates. water will flow through the pipe 17, the T 18,the pipe 56, and valve 57 to the chamber 50 and. then to the chamber 51and through the pipe 58 and valve 59 to the boiler 1, and as the watercontinues to flow the steam will be forced out of the expansion tube 32.and the expansion tube will be filled more or less with water and willcontraet to resea-t the valves 62 and 69,

and this operation will continue as the Water level goes up and down inthe boiler.

A secondary expansion tube 80 is tapped into the lug 43 to communicatewith the chamber 44 and extendsinto position near the casting carryingthe head 42. A flexible tube 81 is connected to the free end of thesecondary expansion tube 89 by a connection 82 and is connected to thefitting by a connection 83. The tube 81' is bent to form a U -shapedportion at its center so that the tube may yield under the expansion andcontraction of the expansion tube 80. In case the expansion tube 32 andco-operating parts fail to work the water level may go down until thesecondary expansion tube 80.is filled. with steam more or less.

A suitable compression valve 84 is .connected by a pipe 85 to the steamchamber 49 and a whistle 86 is connected to the valve. The operatingstem 87 of the valveis spring pressed outwardly and the valve is openedto blow the whistle by pressing the stem 87 inwardly. A slide 88 isloosely mounted on the expansion tube 32 and has a clamp 89 rigidlybolted to the secondary expansion tube so that the slide 88 will bemoved as the tube 80 expands or contracts. An arm 90 extends upwardlyand. laterally from the slide 88., .A screw 91 is adjustably mounted.through: the upper end of the arm and held in adjusted position by a.lock nut 92, the head 93 of. the screw being in position to engage thestem 87' and the screw being accurately adjusted to blow the whistle 86when the expansion tube80is filled with steam and expands. The partsshould pansion tube 32 will incline slightly downwardly from the steamend toward the water end so that when the water level goes down thewater will all run out of the-expansion tube instead of being trappedin. the tube. 'J

The boilers 94, 95 and96- are each provided with a governor 97, 98 and99 and the boilers are each connected to a steam pipe line 100 and to afeed water line 1101.

The steam pipe line leads from the boiler to the steam engines 102 and103 and the engines 102 and-.103 operate the pumps-104 and 105.=Ihave-showntwo steam pumps for the reason, that undersome conditions therules require two pumps so that either pump may be used while the otheris shut down for repairs.- The water line 101 is connected to the pumps.104. andg105. When. the water becomes low in either of the boilers besetup so that the ex Various changes may be made without departing from thespirit of the invention as claimed.

I claim:

1. The combination with a steam boiler and feed water pump, of anexpansion tube mounted at the desired water level, one end of the tubebeing connected to the boiler below the water levelfand the other end ofthe tube being connected to the boiler above the water level, a steampipe connecting the ed to be opened and closed by the expansion andcontraction ofthe expansion tube, and a Water pipe connecting the pumpto the boiler and having a valve adapted to be opened and closed by theexpansion and contraction of the expansion tube.

2. The combination with a steam boiler and feed water pump, of anexpansion tube mounted .at the desired water level, one end of the tubebeing connected to the boiler below the water level and the other end ofthe tube being connected to the boiler above the water level, a steampipe connecting the boiler to the pump and having a valve adapted to beopened and closed by the expansion and contraction of the expansiontube, a water pipe connecting the pump to the boiler and having a valveadapted to be opened and closed by the expansion and contraction of theexpansion tube, a secondary expansion tube mounted below the desiredwater level and having one'end connected to the boiler above the waterlevel and the other end connected to the boiler below the water level, awhistle connected to the boiler above the water level, and means carriedby the secondary expansion tube for operating the steam whistle. 1

8. A steam and water governor for boilers comprising an expansion tubeadapted to be mounted at the desired water level with one endconnectedto the steam zone and the other end connected to the water zone of a Iboiler, valves operated by the expansion tube and adapted to control asteam pipe connection from a boiler to a pump, and a water pipeconnection from the pump to the boiler.

4. A steam and water governor for boilers.

comprising an expansion tubemounted in approximatelyhorizontal positionadjacent the desired Water. level in the boiler, means connecting oneend of the tube to the boiler below the waterlevel, means connecting theother end of the tube to, the steam space of the boiler, whereby steamand water can be admitted to the tube upon the fall andrise of water inthe boiler respectively to expand and contract the tube, and a valvecontrol-. ling the water inlet to the boiler mechanicalboiler to thepump and having a valve adaptly operated by the expansion and contraction of the tube.

boilers, and a governor'for each boiler, each governor comprising anexpansion tube adapted to be mounted at the desired Water level with oneend connected to the steam zone and the other end connected, to thewater zone of a boiler, valves operated by the expansion tube andadapted to control a steam pipe'connection .fromthe'boiler to the pumpsystem, and a water pipe connec tion from the pump system to the boiler.

6. A'steam and water governor for boilers comprising an expansion tubemounted in approximately horizontal position adjacent the desired waterlevel in the boiler, means connecting one end of the tube to the boilerthe boiler operable simultaneously with the first valve by the expansiontube.

In testimony whereof-I have name to this specification.

WILLIAM i o. BLUNDELL.

signed my

